<script src="https://unpkg.com/vue"></script>

<div id="app-2">
  <span v-bind:title="message">
    鼠标悬停几秒钟查看此处动态绑定的提示信息！
  </span>
</div>

<script>
  var app2 = new Vue({
    el: '#app-2',
    data: {
      message: '页面加载于 ' + new Date()
    }
  });

</script>
